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' e, n. Nic-Hons, AND o. W. Minas, or sinn PLAGE.

LetteraPatent No. 74,893, dated February 25, 1868'.

IMPROVEMENT IN GRAIN-DREES.

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www To aan WHOM 1r MAY conceals:

Bc it known that I, LEWIS S, CESICHESTER, of' Brooklyn, in the county of Kings, and State of New York,

have invented and made a certain new and useful Iinprovement in Grain-Dricrs; and do hereby declare the following to be a full, clear, and exact description of the said vinvention,reference being had to the annexed Y drawingmaking part oi this spcciiication,wherein= Figure 1in a vertical section of said grain-drier.-

Figure 2 is a Election through a portion oi the grain-tables at right nngies to 5g. 1; and

Figure 3 is aplan of' a portion of the grain-tables in one range.

Similar marks of' reference denote the same parts;

The object of this invention is to faciiitate the construction ot' grain-driers of various sizes and capacity, according to the use tc which the drier is to be put, and at the sanne time direct the heat more or less upon the grain 'at particular stages in its descent, and maintain a pressure of the hot air upon it and beneath the supporting,

tables.

In the drawing, areprcsents a vertical Hue, into which the products ofcombustion from a bright open fire are conveyed, and mingled with a suficientvsupply oi' atmosphere to bring the same to the proper temperature'. The furnace shouid be provided with a separate tine and damper through which tho'smolse may pass in kindling the tiro. I provide at one side o the uc a, a series of graimsupporting tables or hoppers, so formed as to allow the heated air to pass betwcen the' grain andthe under7 side oil the tables to convey away moisture to the escape.. une b.'

A more detailed account of those graimhopprs Aor tables is given hereafter, but the means for directing the air through between the tables and grain may be used with any character of tables.

In the vertical iue a, I place one or'more deflecting-plattorms c, leaving openings at cZ, next the range of tables or hoppers, and over these I attach the dedetors e, that are hung at their upper edge, and may be moved from the outside, so as to stand at'any desired' inclination, and, by taking the ascending `heated air, deiiect it through between the tables and grain, and according to the position of these detlecting-valves e, so the bont will be passed uniformly through in contact with the grain, or driven through more at one part than at another. The grain is supplied gradually at the upper part of the apparatus, and allowed to pass away gradually from a A hopper at the bottom, and according to the capacity required for the apparatus, so it is to be made of a greater or lss'height, and theheated air in ascending, will, by each of the clcilectors @be directed inthe required quantity through the graimtables.. Y

The graimhoppers are made of metal; I prefer cast iron; and I forni alsection containing several inclined hoppers in enchsection, as seen at g. The opening at the bttorn of each hopper allowsthe grain to pass down, and I so place the different sections that the openings of one hopper come over theapex or ridges between the inclined sides of the hoppereof the section next below. This arrangement causes the grain to pile at the under-side of each hopper-openingin such' a form that a free space is left over the grain and below the ridge between the inclined sides of the hoppers, as seen in iig. l.

I preferthnt these sections be niadc'so that when yturned end for end, the openings in one of the sections come on the line of the ridges in tb'e contiguous section, as seen in thoplan, iig. 3, so that the air-space under the ridges is zigzag, in order that tho air may be detained in passing over thegra'in, and caused to impinge there upon by the eddy and deflection of the current from a straight course, 'and thereby the air be rendered more eiiiciont in dryingthe grain.

This character oi' graindricr is capable of being inadc of a largo or small capacity by simply increasing or lessening the number of the sections g, the casing containing the same being made accordingly'.

Grain-driers made on this plan muy bel-employed for drying grain immediately before grinding, or for preparing the same for "storage, in bulk, directly from the field.

What I claim, and desire tosccurc by Letters Patent, i-3

1. The vertical air-liuc a, in combinationiwith the doilcctors e, platforins c, and-grain-tables, platforms, or hoppcrs, substantially as and for thc purposes sot foi-tin i 2. `'llie sections g, havi'nghopper-shapcd openings, and placed together, substantially as and for the purposes set forth, i

In witness whereof, I have hereunto set'my signature, this fourteenth day of October, A. D. 1867.

LEWIS S. CHICHESTER.

Witnesses;

Guns. H. SMITH, Gro. D. WALKER. 

